Axle-rolling mill.



J. SCHINNELLER. AXLE ROLLING MILL (Application filed June 8, 1900.)

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No. 672.516. Patented Apr. 23, l90l.

` J. SCHINN'ELLER.

AXLE ROLLING MILL. Application mea June 8,51900., (No Model.)

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No. 672,516. Patented Apr. 23, |901. J. SCHINNELLER.

AXLE ROLLING MILLA [Application md June s, 1900,)

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PATENT JACOB SCHINNELLER, OF PITTSBURG, PENNSYLVANIA.

AXLE-ROLLING MILL.

SPECIFICATION formingpart of Letters Patent No. 672,516, dated April 23, 19081.

l `Application liled June 8, 1900. Serial No. 19,583. (No model.)

T0 a/Z when@ it may concern.: Be it known that I, JACOB SCHINNELLER, a

` resident of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in p Axle-Rolling Mills; and I do hereby declare ject the production of an apparatus of this character in which the axle is suitably shaped at a" single operation, which provides for the elongation of the metal due to the reduction of the blank, and which is provided with means for feeding the blank between the rolls and ejecting the finished axle therefrom.

To enablelpersonsskilled in the art to construct and use my apparatus, I will now de- Scribe the same fully, referring to the accompanying drawings, in which- Figure 1 is an end View of a mill embodying my invention. Fig. 2 is a front view of the same. Fig. 3 is a vertical transverse section thereof. Fig. 4 is a vertical longitudinal section on the line 4 4, Fig. 3. Fig. 5 is atop' viewof the lower roll, showing the means for holding the blank between the rolls. Figs. 6 and 7 are transverse sectional views of the rolls `on the lines 6 6 and 7 7, respectively. Fig. 4 illustrates the manner of'feeding in the blank and ej ecting the finished axle, and Fig. 8 is a development in plan and elevation of the journal-forming collar of the rolls.

1 1 represent suitable bed-plates, to which are secured, as by means of bolts, the housings 2 2, in which are mounted the rolls 3 4.

" j The rolls 3 4 are provided with suitable journals 16, mounted in boxes 5 6, moving in a vertical guideway in the housings, as 1s common in this class of apparatus. The dlstance Vbetween the rolls is regulated by screws 7,

having one of their ends bearing against the lower side of the boxes 5 and taking into threadedapertures in frames 8, resting on the boxes 6. The upper roll 3 is held down against the blank bymeans of caps 9, restingon the journal-boxes 5 thereof, said cap being held in position by means of suitable ,boltslO l0, as will be readily understood. By loosening the nuts on the bolts 10 10 and turning the screws 7 the distance between the rolls may be varied to roll the desired diameter of axle. The rolls are provided on each end with the gears 1l 12, which mesh with gears 13, secured to the counter-shaft 14, mounted in the front of the roll-housings. By this means both rolls are driven in the same direction.

Each roll comprises the body 15, which is integral with the journals 16, said body havinga flange or collar 17 at one end. The working faces of the rolls are made up of a series of sleeves or rings 18 18, 19 19, and 20, respectively, which sleeves or rings are slipped upon the body 15, one of the rings 18 resting against the collar 17 thereof, and are secured thereto in any suitable way. The body and journals of the rolls are made hollow, as shown in Fig. 4, and the sleeves or rings 18 and 2O are cored out on their under side, asshown, in order to reduce their weight. The rings 18, 19, and 2O may all be of the same width or they may vary in width in any manner desired or to facilitate the formation of the desired contour of working surface thereon. The lower roll 4 is provided with a longitudinal groove 22, extending from end to end thereof, said groove being formed by suitable grooves in each of the rings 18, 19, and 20 and of sufficient depth to permit the finished axle to drop therein for the purpose of ejecting the same from the rolls, as will hereinafter appear. The surfaces of the rings 18, 19, and 20 are suitably shaped to roll an axle of the desired contour, and should it be desired to roll axles of different contour or articles other than axles it is merely necessary to remove the rings 18, 19, and 20 and replace them by others having their surfaces shaped to roll the desired contour of article. In the specific form shown the sleeve 20 is highest at its middle and gradually tapers from the middle toward each end in order to roll an axle having the smallest diameter at its middle. The working face of the sleeve '20 is flush with the surface of the roll until it reaches the points 23, when the middle portion of said face gradually rises above the face of the roll to the point 24, from which point said face continues concentric with the axis of the roll and until it terminates in the abrupt shoulder 25. In the lower roll the groove 22 is located in the space between the IOO shoulder 25 and-the point 23. The end portions of the working face of the sleeve 2O are concentric with the axis of the roll, and the rings or collars 19 have their working faces also concentric with the axis of the roll. The

rings or collars 18 are each provided with an nate in the abrupt shoulder 28, the starting and ending points of these ribs or projections `being in line with the starting and ending portions of the working face of the sleeve 20. The ribs or projections 26, furthermore, at their starting end are substantially a point and gradually increase in width up to the point 29, from which point they remain the same width to their ends, and said ribs gradually recede toward the end of the roll from the point of beginning of said ribs to the point 29. The object of this is to allow for the expansion of the blank due to-the reduction of its diameter by the working face 20. From the point 29 to their ends the ribs or projections continue parallel with the e'nd faces of the rolls.

In front of the machine, suitably `secured to the bed 1, are standards 30, provided at their upper ends with downwardly-inclined surfaces 31, which terminate in close proximity to thelower roll 4. The surfaces 3l serve as a'support for the blanks, from which the latter are fed into the rolls by means of fingers 32. These fingers are secured to rock-shafts 33, mounted in the collars 18 of the lower roll and project out through suitable slots same to lift a blank from the standards 30 and carry the same up between the rolls, at which point Vthe arms 35 pass off the ends of the cams 36, enabling the fingers 32 to drop back into vthe slots 34 and pass beyond the blank.

To hold the blank in the bite of the rolls, I provide at the rear of the mill a shaft 37, on

which are rigidly mounted arms 38, said arms being'held in a horizontal position by means `of set-screws'39, engaging the shaft 37. In the forward end of the arms 38 is secured a rod or shaft 40, upon whichtwo rollers 41 41 are mounted. These rollers are opposite the collars 19 of thel rolls and are adapted to engage with the cylindrical portions of the axle and hold the same in the bite of the rolls. In

order to prevent the axle flying out at the front of the mill, the lower roll is preferably made slightlylarger than the upper'rolh and as both rolls are driven at thesame speed the circumferential speed of the lower roll will be greater than that of the upper roll, thereby holding the blank against the rollers 41 41. On the rear side of the machine, suitably secured to the bed 1, are inclined guideways 42, upon which the axles are discharged when they leave the rolls.

The operation of the apparatus is asV follows: The cylindrical blanks are placed on the inclined surfaces 31 of the standards 30, and the lower roll in its revolution carries the arms 35 into engagement with the cams 36, thereby projecting the fingers 32 radially, so that they lift the 'blank from the standards 30 and carry it upward into the bite of the rolls, where the blank is stopped by the rollers 41, the arms 35 having meanwhile passed off the cams 36, enablinghthe fingers 32 to drop back into the slots 34 and pass the blank. The blank is then rotated axially and compressed between the working faces of the rolls, the face 2O and the rib or projection 26 gradually reducing the diameter of the blank at the` middle and journals thereof. The reduction of the .middle of the blank by the working face 20 grad ually and progressively forces the metal endwise, causing elongation of the blank, which elongation is compensated for by the receding edge of the rib 26, so that the inner edge of the journal-neck is started by the inner edge. of the rib 26 andis finished on substantially the same line of metal by the vfinishing end of said rib. The journal of the axle is begun as amere groove by the pointed Vend of the rib 26 Aand gradually increased in depth during one revolution of the axle-blank and then widened by said rib as it successively brings an increasing width into contact with the blank. In this manner the surplus metal of the axle is gradually forced toward the end of the ing the journal gradually moves lfarther toward the end of the blank, due to the 'elongation of the latter by the reduction caused by the surface 2O of the rolls, said elongation being permitted by the receding inner edge of said rib. This process ofl reduction and ,elongation continues until the points 24 and 29 of the rolls are in 'contact with the blank, from which point the surfaces 2O of the rolls and the ribs 26 are concentric With the axes of the rolls, and the 'ribs 26 have both edges .parallel'to the ends of the rolls, so that the blank is rotated one or more times without any further reduction or elongation of the body orspreading of the journal, thereby giving a proper finish to the axle. the shoulders 25 28 of the rolls pass the blank the latter drops into the groove 22 of the lower roll and -is carried underneath the rollers 41 to the rear of ithe machine, where it is discharged upon the inclined guideways 42. In the meantime the fingers 32 have been projected by vthe cams 36 'and have carried an- As soon as IOO IIO

`other blank into the bite of the rolls, and the ed to roll car-axles, it is obvious that the principle thereof may be applied to the rolling of any cylindrical article having a varying crosssection wherein during the process of rolling the blank is elongated and has a neck, necks,

` or collars formed thereupon by the rolls. In

case it is desired to form a collar or ,collars on the article the ring or rings 18 would be replaced by a corresponding ring having, in place of the ribs 26, a groove gradually increasing in width and depth and gradually receding from the middle of the roll, as will be readily understood. It is also obvious that in place of having two coperating rolls, as illustrated, the prlnciple of my invention may be applied to a roll coperating with a stationary concave.

What I claim, and desire to secure by Letters Patent, is-

"1. A roll having a surface adapted to reduce the blank'and having a portion at the side of the reducing-surface, said portion being in a different plane from the reducing-surface and gradually receding therefrom to allow for the elongation of the blank.

2. Aroll havingasurface adapted to reduce the blank, and having a raised portion at the side of thereducing-surface, said raised portion gradually receding from the reducingsurface to allow for the elongation of the blank.

3. A roll having a surface adapted to reduce the blank, and having a raised portion at the side of the reducing-surface, said raised portion gradually increasing in height and gradually receding from the reducing-surface to allow for the elongation of the blank.

4. A roll having a surface adapted to reduce the blank, and having a raised portion at the side of the reducing-surface, said raised portion gradually increasing in width and receding from the reducing-surface to allow for elongation of the blank.

5. Aroll havingasurface adapted to reduce the blank, and having a raised portion at the side of the reducing-surface, said raised portion gradually increasing in height and gradually increasing in width and receding from the reducing-surface to allow for elongation of the blank.

6. A roll having a surface adapted to reduce the blank, said surface gradually increasing in height from the surface of the roll, and hav- `ing a raised portion at the side of the reducing-surface, said raised portion gradually receding from the reducing-surface to allow for elongation of the blank.

7. A roll having a surface adapted to reduce the blank, said surface gradually increasing in height from the surface of the roll, and having a raised portion at the side of the reducing-surface, said raised portion gradually increasing in height and gradually receding from the reducing-surface to allow for elongation of the blank.

8. A roll having a surface adapted to reduce the blank, said surface gradually increasing in height from the surface of the roll, and having a raised portion at the side of the reducing-surface, said raised portion gradually increasing in height and gradually increasing in width and receding from the reducing-surface to allow for elongation of the blank.

9. A roll having a surface adapted to reduce the blank, and having a portion at each side of the reducing-surface, said portions being in a different plane from the reducing-surface and gradually receding therefrom to allow for elongation of the blank.

lO. A roll having a surface adapted to reduce the b1ank,said surface gradually increasing in height from the surface of the roll, and having a raised portion at each side of the reducing-su rface,said raised portions gradually increasing in height and gradually receding from the reducing-surface to allow -for elongation of the blank.

11. In rolling apparatus, the combination of rolls having surfaces arranged to cooperate to reduce the blank, each roll having a portion at the side of the reducing-surface, said portion being in a different plane from the reducing-surface and gradually receding therefrom to allow for elongation of the blank.

12. In rolling apparatus, the combination of rolls having surfaces arranged to coperate to reduce the blank, said surfaces gradually increasing in height from the surfaces of the rolls, each roll having a raised portion at the side of the reducing-surface, said raised p0rtion gradually increasing in height and gradually receding from the reducing-surface to allow for elongation of the blank.

13 A roll for axial or transverse rolling comprising a body portion, and a series of rings or collars on said body portion, said rings forrning an unbroken working surface and having their faces shaped to produce the desired contour of working surface on the roll.

14. A roll for axial or transverse rolling,cornprising a body portion and a series of rings removably secured to said body portion, said rings having their faces shaped to produce the desired working surface on the roll and being interchangeable with other rings having differently-shaped faces.

15. A roll for axial or transverse rolling,comprising a body portion, and a series of rings on said body portion, said rings being provided with alining grooves forming a groove for receiving and ejecting the article from the rolls IIO ' the faces of said rings being shaped to produce the desired contour of working surface on the rolls.

16. In rolling apparatus, the combination with rolls adapted to receive the blank axially, of movable means for feeding the blank to said rolls, means for holding the blank between said rolls, and means for ejecting the article from said rolls. V

17. In rolling apparatus, the combination Withrolls adapted to receive the blank aXially, of movable means for feeding the blank to said rolls, means for holding the blank between said rolls, one of said rolls being provided with a groove to receive and eject the article from said rolls.

18. In rolling apparatus, the combination with rolls adapted to receive the blank axially, of means for feeding the blank to said rolls, an abutment for holding the blank between said rolls, one of said rolls being provided with 'a groove to receive and eject the article after-rolling.

19. In rolling apparatus, the combination lwith rolls adapted to receive the blank axially, of a stationary cam, and a device pivoted to one of said rolls and arranged to enf gage said cam and to receive said blank an carry it into the rolls.

20. In rolling apparatus, the combination with rolls adapted to receive the blank axially, of a stationary cam, a device pivoted to one of said rolls and arranged to engage said cam'and to receive the blank and carry it into the rolls, and 4means for holding the blank between the rolls.

21. In rolling apparatus, the combination 22. In rolling apparatus, the combinationv with rolls adapted to receive the blank axially, of a stationary cam, and a device pivoted to one of said rolls and arranged to engage said cam and to receive a blank and carryT it into the rolls, said roll being also pro vided with a groove adjacent the pivoted de vice to eject the article from the rolls.

23. In' rolling apparatus, the combination with rolls adapted to receive the blank axi ally, of a stationary cam, a device pivoted to one of said rolls and arranged to engage said cam and to receive a blank and carry it into the' rolls,fsaid roll being also provided with a groove adjacent the pivoted device for ejecting the article from the rolls, and a stationary abutment for holding the blank between tlie rolls.

In testimony whereof I, the said J ACOB SCHINNELLER, have hereunto set my hand.

JACOB SOHINNELLER.

Witnesses:

F. W. WINTER, ROBERT C. TOTTEN. 

